catzgendron has it right...most kittens learn to use the litter box by watching and imitating mother or another adult cat. if they are taken from mother before they can learn, and it is your only feline, then as soon as you get it home, set it in the litter box, take its front paws and make digging motions, like a cat getting ready to go. never punish the cat for having accidents as this can make matters worse...if you catch the cat in the act, just pick it up and move it to the litter box as quickly and calmly as you can. if you find an accident after the fact, just clean it up and use an odor remover on the spot. here is something that might help to...leave a piece of the paper towel used to soak up the kittens urine in the litter box so it can smell it. also deposit the feces in there when you find it. this will help teach the kitten what the litter box is for. it also may help to start the kitten on plain dirt, and once it is used to going in the litter box, slowly change over to your preferred litter type.